Across
- 3. The black solid fossil fuel
- 6. energy made using the sun
- 8. being used at the same rate as it is being created
Down
- 1. the slippery black fossil fuel
- 2. a really old animal skeleton under the ground
- 4. used to produce electricity from water
- 5. the wind turns this to make electricity
- 7. the colourless substance burnt in bunsen burners